3. A 720. mL sample of water was cooled from 60.0°C to 10.0°C. How much heat was lost?

Q: a system releases 349 cal of heat and has 258 J of work done to it, what is the change in energy of…

A: The question is based on the concept of chemical thermodynamics.  we have to calculate change in…

Q: If 87 J of heat are added to a balloon, causing it to expand from 1.0 L to 1.4 L under 0.97 atm of…

A: Given: Required heat = 87 J Initial volume = 1.0 L Final volume = 1.4 L External pressure = 0.97…

Q: A strip of aluminum weighing 0.789 g is heated from 26.1 C to 45.8 C. What is the amount of heat…

A:

Q: A 100 g piece of metal is heated to 500°C before being submerged in 2 liters of water at 25°C. If…

A: Given: mass of metal = 100 g Initial temperature of metal = 500 oC Volume of water = 2 L = 2000 mL…

Q: what is the anwser to  A student heats a 200 g sample of water from 20oC to 80oC. The specific heat…

A: The answer to the following question is-

Q: The reaction of hydrogen and oxygen gases produces 18.0 g of water and releases 68.2 kcal of heat.…

A: Endothermic reactions can be defined as the reaction which involves the intake of heat while…

Q: In a similar study, a student determines that a sample of water in a calorimeter absorbs 80.5…

A: The heat absorbed by the water will be equal to the heat released by zinc.

Q: What is the heat of reaction and what is the difference between an endothermic and an exothermic…

A: The energy released or absorbed during a  chemical reaction is termed as the heat of reaction or…

Q: How much heat is required to warm 1.50 L of water from 25.0°Cto 100.0°C? (Assume a density of 1.00…

A: We can solve this problem by using the following relation: q=m×c×△T Where: q=Heatc=specific heat(…

Q: 2. What is the specific heat of a metal whose mass is 94.5 g and the temperature changes from 48 °C…

A: Consider the given information is as follows; Mass of the metal = 94.5 g Initial temperature T1…

Q: A 4.81 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Specific heat: It is defined as the amount of heat required to raise the temperature of the…

Q: If the specific heat of water is 4.186 J/g °C, how much heat is required to increase the temperature…

A:

Q: If two objects, A and B, of different temperature come into direct contact, what is the relationship…

A:

Q: how much heat is released when 51.1 g of copper cools to 75.0°C from 58.9°C given the specific heat…

A: Q = m . s . (T1 - T2)

Q: A 44.3 g sample of water at 100.00 °C (specific heat of water = 4.184J/g.°C) was placed in an…

A:

Q: 6.117 What is the temperature of a 125-g sample of tin, initially at 26.2°C, if 155 J of heat is…

A:

Q: how many grams of iron

A:

Q: If 100 mL of water instead of 50 mL of water was used, how would the final temperature change? How…

A: Specific heat change is the amount of heat required to increase the temperature of 1 gram of…

Q: A student places a block of hot metal into a coffee cup calorimeter containing 151.0 g of water. The…

A: Given data,Mass of water=151.0gInitial temperature of water=23.3oCFinal temperature of…

Q: (d) Consider the complete combustion of Benzene (CeH6). If the density of benzene is 0.88 g/mL, what…

A: Given reaction is : 2C6H6 (l) + 15 O2 (g) ----------> 12CO2 (g) + 6H2O (g) , ΔH0rxn = -6278 KJ…

Q: The mixture of gas and air inside a cylinder reacts, releasing 400 kJ of total energy. If the system…

A: 150 kJ of heat is released from the system

Q: How do I calculate the specific heat of metal if 1027 joules of energy are needed to raise the…

A: q = m .C . ΔT  WHERE  heat = q = 1027 J  mass of metal = m = 42.9 g specific heat of metal  = C =…

Q: A 7.37 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Given, Mass of sample = 7.37 gMass of water = 150 g Mass of solution = 157.37 g Initial temperature…

Q: 4. A 17.1-gram sample of Iron increases temperature from 25.0 °C to 110.0 °C. How much heat is…

A: The amount of Heat absorbed by the Iron can be calculated as -

Q: When 514 J of heat is added to a sample of liquid water, the temperature rises from 27.8°C to…

A: Specific heat capacity is the amount of heat needed to raise the temperature(usually 1°C) of given…

Q: How many kilojoules of heat will raise the temperature of 1.50 kg of water from 22.00°C to 25.00°C?

A:

Q: 3. 842 J of works was done for a gas to be compressed. At the same time, it releases 451 J of heat.…

A: Given -> Work = +842 J ( work done on the system) Q = -451 J ( heat released)

Q: How much energy(in Joules) is required to heat 3.00g of water from 23.0 oC to 100.0 oC?

A: Given data: The mass of water m = 3.00 g. Initial temperature T1 = 23.0°C. Final temperature T2 =…

Q: Describe how you could determine the specific heat of a sample of a solid substance

A: Specific heat calculated experimentally  by bomb calorimeter.

Q: Directions: Please complete this worksheet on a separate piece of paper. 1. What is the specific…

A: Given :  1. Mass of aluminum = 28.4 gm   Heat given = 207 J Increase in temperature = 8.1 ° C  2.…

Q: A 120 gram sample of gold absorbs absorbs 1.2 kJ of heat. How many much does the temperature of the…

A: Given: Mass of the sample= 120 g Heat absorbed= 1.2 kJ Specific heat capacity of gold= 0.129 To…

Q: The specific heat of copper is 0.385 J/g°C. Calculate the final temperature when 25.0 g of copper…

A:

Q: Chargers for cell phones get warm while they are being used. Some of the energy that they are using…

A: The solution is given below -

Q: 1. The temperature of 13.5g of water increased from 15.0°C to 37.0°C. How much heat was absorbed by…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is the specific heat of a substance if 373 J of heat is required to raise the temperature of a…

A: Q = m . s . ∆T Where, Q = heat required; m = mass of substance; s = specific heat and ∆T =…

Q: 4. An unknown substance requires 567 J of heat to increase its temperature from 0 to 15 °C. The…

A:

Q: How many Joules of energy would be required to heat 35g of water from 23C to 29C?

A: Specific heat capacity of a substance can be defined as the amount of energy required to raise…

Q: How much heat (J) can be absorbed by 1.500 kg of water and have the temperature of the water…

A: Given Mass of water = 1.500 kg temperature increase ΔT = 2.0°C

Q: rogen sulfide, H2S, is produced during decomposition of organic matter. When 0.4190 mo H2S burns to…

A: Given, Heat released = -217.0 KJ

Q: An unknown substance requires 567 J of heat to increase its temperature from 0 to 15 ºC. The  sample…

A: Given, Amount of heat required (Q) = 567 J Initial temperature (Ti) = 0°C Final temperature (Tf) =…

Q: heat

A:

Q: Consider the combustion of in oxygen gas to produce carbon dioxide gas and water vapor. In an…

A: if 4790J energy absorbed by water that means energy is released by this combustion reaction. And…

Q: When 2 mol of potassium chlorate crystals decompose to potassium chloride crystals and oxygen gas at…

A: A thermochemical equation for a given reaction can be defined as the balanced stoichiometric…

Q: -Calorimetry Questions 1. A 24.6 g sample of nickel is heated to 110.0 °C and then placed in a…

A:

Q: 2. A solid substance has a mass of 250 grams. It is cooled by 25.00°C and loses 4.937 kJ of heat.…

A:

Q: The temperature of 34.7 g H2O changes from 27 °C to 53 °C. What is the heat associated with this…

A:

Q: A 4.8 sample of water starting 56 C loses 448 J of energy in the form of heat. What is the final…

A:

Q: A 8.17 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Mass of salt sample = 8.17 g Mass of water = 150 g Total mass of solution ( m ) = 8.17 g + 150 g =…

Q: If a system does 62.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change…

A: Ca (s)  + 1/2 O2  (g)  -------> CaO (s)    ΔH°=-635kJ/mol to get desired equation we have to…

Q: 78.50 grams 2.30 C 105 cal (2) (3) Mass of Metal B ATemperature Heat lost/gained by Metal B Specific…

A: